Efficient nickel-catalyzed hydrocyanation of alkenes using acetone cyanohydrin as a safer cyano source
作者:Koji Nemoto、Tsuyoshi Nagafuchi、Ken-ichi Tominaga、Kazuhiko Sato
DOI:10.1016/j.tetlet.2016.06.036
日期:2016.7
nickel catalyst prepared in situ from a Ni(II) compound, phosphine ligand, and zinc powder was found to be an efficient catalyst system for the hydrocyanation of various alkenes using acetone cyanohydrin as a safer cyano source. The combination of NiCl2·6H2O and 1,3-bis(diphenylphosphino)propane was the most efficient catalyst precursor in DMF. Under the optimized conditions, various styrenes, heterocyclic
发现由Ni(II)化合物,膦配体和锌粉原位制备的活性镍催化剂是使用丙酮氰醇作为较安全的氰基源对各种烯烃进行氢氰化的有效催化剂体系。NiCl 2 ·6H 2 O和1,3-双(二苯基膦基)丙烷的组合是DMF中最有效的催化剂前体。在优化的条件下,各种苯乙烯,杂环烯和脂族烯烃以优异的收率转化为相应的腈。